﻿@inject IStringLocalizer<Foo> FooLocalizer

<Table TItem="Foo"
        IsPagination="true" PageItemsSource="@PageItemsSource" SearchMode="SearchMode.Top"
        IsStriped="true" IsBordered="true" CustomerSearchModel="@CustomerSearchModel" ShowSearch="true" ShowSearchText="true"
        ShowToolbar="true" IsMultipleSelect="true" ShowExtendButtons="true"
        OnQueryAsync="@OnQueryAsync" OnAddAsync="@OnAddAsync" OnSaveAsync="@OnSaveAsync" OnDeleteAsync="@OnDeleteAsync">
    <TableColumns>
        <TableColumn @bind-Field="@context.DateTime" Width="180" />
        <TableColumn @bind-Field="@context.Name" Searchable="true" />
        <TableColumn @bind-Field="@context.Address" Searchable="true" />
        <TableColumn @bind-Field="@context.Count" />
        <TableColumn @bind-Field="@context.Education" />
    </TableColumns>
    <CustomerSearchTemplate>
        @if (context is FooSearchModel model)
        {
            <FooSearch @bind-Value="@model" />
        }
    </CustomerSearchTemplate>
</Table>

@code {
    /// <summary>
    /// Foo 类为Demo测试用，如有需要请自行下载源码查阅
    /// Foo class is used for Demo test, please download the source code if necessary
    /// https://gitee.com/LongbowEnterprise/BootstrapBlazor/blob/main/src/BootstrapBlazor.Shared/Data/Foo.cs
    /// </summary>
    [NotNull]
    private List<Foo>? Items { get; set; }

    private static IEnumerable<int> PageItemsSource => new int[] { 4, 10, 20 };

    private ITableSearchModel CustomerSearchModel { get; set; } = new FooSearchModel();

    /// <summary>
    /// OnInitialized 方法
    /// </summary>
    protected override void OnInitialized()
    {
        base.OnInitialized();

        Items = Foo.GenerateFoo(FooLocalizer);
    }

    private static Task<Foo> OnAddAsync() => Task.FromResult(new Foo() { DateTime = DateTime.Now });

    private Task<bool> OnSaveAsync(Foo item, ItemChangedType changedType)
    {
        // 增加数据演示代码
        if (changedType == ItemChangedType.Add)
        {
            item.Id = Items.Max(i => i.Id) + 1;
            Items.Add(item);
        }
        else
        {
            var oldItem = Items.FirstOrDefault(i => i.Id == item.Id);
            if (oldItem != null)
            {
                oldItem.Name = item.Name;
                oldItem.Address = item.Address;
                oldItem.DateTime = item.DateTime;
                oldItem.Count = item.Count;
                oldItem.Complete = item.Complete;
                oldItem.Education = item.Education;
            }
        }
        return Task.FromResult(true);
    }

    private Task<bool> OnDeleteAsync(IEnumerable<Foo> items)
    {
        items.ToList().ForEach(i => Items.Remove(i));
        return Task.FromResult(true);
    }

    private Task<QueryData<Foo>> OnQueryAsync(QueryPageOptions options)
    {
        IEnumerable<Foo> items = Items;

        var isAdvanceSearch = false;
        // 处理高级搜索
        if (options.AdvanceSearchs.Any())
        {
            items = items.Where(options.AdvanceSearchs.GetFilterFunc<Foo>());
            isAdvanceSearch = true;
        }

        // 处理 自定义 高级搜索 CustomerSearchModel 过滤条件
        if (options.CustomerSearchs.Any())
        {
            items = items.Where(options.CustomerSearchs.GetFilterFunc<Foo>());
            isAdvanceSearch = true;
        }

        // 处理 Searchable=true 列与 SeachText 模糊搜索
        if (options.Searchs.Any())
        {
            items = items.Where(options.Searchs.GetFilterFunc<Foo>(FilterLogic.Or));
        }

        // 过滤
        var isFiltered = false;
        if (options.Filters.Any())
        {
            items = items.Where(options.Filters.GetFilterFunc<Foo>());
            isFiltered = true;
        }

        // 排序
        var isSorted = false;
        if (!string.IsNullOrEmpty(options.SortName))
        {
            var invoker = Foo.GetNameSortFunc();
            items = invoker(items, options.SortName, options.SortOrder);
            isSorted = true;
        }

        // 设置记录总数
        var total = items.Count();

        // 内存分页
        items = items.Skip((options.PageIndex - 1) * options.PageItems).Take(options.PageItems).ToList();

        return Task.FromResult(new QueryData<Foo>()
        {
            Items = items,
            TotalCount = total,
            IsSorted = isSorted,
            IsFiltered = isFiltered,
            IsSearch = options.CustomerSearchs.Any() || !string.IsNullOrEmpty(options.SearchText),
            IsAdvanceSearch = isAdvanceSearch
        });
    }
}
